HIGH DRAMA: Medics wheel away a stagehand who was pinned by a lift yesterday in the Time Warner Center's Rose Theater during set-up for an opera.INFphoto.com

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A giant ladder lift used at a Columbus Circle theater tipped over yesterday, pinning two stagehands who were setting up for an opera production, authorities said.

The Genie Lift — often used to reach lighting or manipulate equipment mounted far above the stage — was backstage at Jazz at Lincoln Center’s Rose Theater in the Time Warner Center when it toppled at about 2:15 p.m., according to the FDNY and people at the scene.

The stagehands — a man and a woman — were getting ready for last night’s US premiere of “Selma Jezková,” performed by the Royal Danish Opera and Orchestra.

City Buildings Department officials said one worker was on the lift, 30 feet up, hanging a curtain when that person overextended, causing the lift to fall over.

A Time Warner Center spokesperson said two people were pinned by the fallen equipment.

Authorities said the stagehands were taken to New York Presbyterian-Cornell Weill Medical Center. Both were in stable condition, police said.

Their names weren’t released.

The opera, by Danish composer Poul Ruders, is based on Lars von Trier’s 2000 film “Dancer in the Dark,” which starred the Icelandic singer Bjork.

“During the set-up for an evening performance at Jazz at Lincoln Center’s Rose Theater, two stagehands were involved in a minor accident,” said Gail Beltron, an executive at the venue.

She said the accident did not involve equipment used during the opera. Beltron described the stagehands as doing “incidental work” in the 1,100-seat Rose Theater.